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LADIES NIGHT: We like to think every night is ladies' night, but Ai Sushi makes it official with an evening of complimentary massages and manicures. Drink specials include $5 house wines and martinis and $3 sake and Sapporo beer, plus, select items from the lounge menu for $3-$5. All proceeds from dessert sales to the Red Cross for Japan relief, which is all the justification you should need for a sweet ending. 7-10 p.m., 358 W Ontario, RSVP to 312-335-9888.

TWO PIECE PARTY: It doesn't feel like spring outside, but tonight's Bikini USA model casting at Crimson Lounge should help warm things up. Bikini USA is looking for models to feature in its upcoming TV show, calendar and searching for its model of the year. Contestants should sport club wear or two-piece swimsuits and high heels and the top three contestants receive a cash prize and advance to the semi-finals. Or you can just go and, you know, judge. 9 p.m.-2 a.m., 333 N. Dearborn St, NO COVER

FASHION FORWARD: Tonight kicks off The Underground Style Series, a weekly Thursday night celebration of fashion for the next six weeks. The shows celebrate the latest spring trends from a mix of Chicago stores and brands. Designs from popular vintage retailer Sofia Vintage hit the runway tonight, and upcoming shows will feature Furla, Adidas Originals, Bonnie & Clyde's and more. Doors 9 p.m., show at 11 p.m., 56 W Illinois, RSVP to vip@rockitranch.com

WINTER BUBBLES: Bistro 110 hosts the final event in its champagne tasting series tonight by pairing Perriet-Jouet and Foie Gras. Eight different foie gras pairings selected by Executive Chef Dominique Tougne will be matched up with sips from the legendary French champagne house. 6 p.m., 110 East Pearson, $50, RSVP at 312.266.3110